Only For Training And Service Purposes - LG U370 Service Manual

3. TECHNICAL BRIEF
SELECT_SPK&RCV
U401
NLAS5223BMNR2G
1
+VPWR
VCC
2
SPK+
NO1
3
SPK_RCV+
COM1
4
IN1
5
RCV-
NC1
C416
0.01u
C405
LINE_N
C406
LINE_P
SPK_AMP_EN
LGE Internal Use Only
10
SPK-
NO2
9
SPK_RCV-
COM2
8
RCV_EN_N
IN2
7
RCV+
NC2
6
GND
Audio AMP
TPA2005D1ZQYR
0.01u R408 33K
D1
IN-
0.01u
C1
IN+
R410 33K
A1
_SD
Figure . Audio part schematics
G3
5
PWR
4
G2
3
G1
2
OUT
1
SP0204LE5-PB
MIC400
B4
VDD1
C4
VDD2
B1
NC
U403
A4
VO-
D4
VO+
C408
10u
Copyright © 2007 LG Electronics. Inc. All right reserved.
- 64 -
MIC
MICBIAS
C400 C402
10u 47p
C407 0.1u
MIC1N
C409 0.1u
MIC1P
+VPWR
SPK-
SPK+
C412
1u

Only for training and service purposes